Seismic monitoring in the oceans by autonomous floats

Alexey Sukhovich (), Sébastien Bonnieux, Yann Hello, Jean-Olivier Irisson, Frederik J. Simons and Guust Nolet
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Alexey Sukhovich: UMR 6538 Domaines Océaniques, Université Européenne de Bretagne, Université de Bretagne Occidentale, CNRS, IUEM
Sébastien Bonnieux: Géoazur, Université de Nice, UMR
Yann Hello: Géoazur, Université de Nice, UMR
Jean-Olivier Irisson: Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire d'Océanographie de Villefranche (LOV)
Frederik J. Simons: Princeton University
Guust Nolet: Géoazur, Université de Nice, UMR

Nature Communications, 2015, vol. 6, issue 1, 1-6

Abstract: Abstract Our understanding of the internal dynamics of the Earth is largely based on images of seismic velocity variations in the mantle obtained with global tomography. However, our ability to image the mantle is severely hampered by a lack of seismic data collected in marine areas. Here we report observations made under different noise conditions (in the Mediterranean Sea, the Indian and Pacific Oceans) by a submarine floating seismograph, and show that such floats are able to fill the oceanic data gap. Depending on the ambient noise level, the floats can record between 35 and 63% of distant earthquakes with a moment magnitude M≥6.5. Even magnitudes

Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms9027

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DOI: 10.1038/ncomms9027

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